Booster seat



FIG. 1 is a perspective view of the booster seat;

FIG. 2 is the front elevation view of the booster seat;

FIG. 3 is the rear elevation view of the booster seat;

FIG. 4 is the right side elevation of the booster seat;

FIG. 5 is the left side elevation of the booster seat;

FIG. 6 is the top plan view of the booster seat;

FIG. 7 is the bottom view of the booster seat;

FIG. 8 is the top plan view of the booster seat with a harness;

FIG. 9 is the bottom view of the booster seat with a harness; and,

FIG. 10 is the perspective view of the booster seat with a harness.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a booster seat, as shown and described. 